$ git clone -n https://gitee.com/opencloudos-stream/ncrack.git /var/lib/mock/dist-oc9-epol-build-93046-59378/root/chroot_tmpdir/scmroot/ncrack
Cloning into '/var/lib/mock/dist-oc9-epol-build-93046-59378/root/chroot_tmpdir/scmroot/ncrack'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ncrack
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca33565 update